  <!-- Left side column. contains the sidebar -->
  <aside class="main-sidebar">
    <!-- sidebar: style can be found in sidebar.less -->
    <section class="sidebar">
      <!-- sidebar menu: : style can be found in sidebar.less -->
      <ul class="sidebar-menu">
        <li class="header">MAIN NAVIGATION</li>
        {cms:menu name="vo"}
            {notempty  name="vo.child"}
            <li class="treeview {$vo.class}">
              <a href="#">
                <i class="{$vo.icon}"></i> <span>{$vo.name}</span>
                <span class="pull-right-container">
                  <i class="fa fa-angle-left pull-right"></i>
                </span>
              </a>
              <ul class="treeview-menu">
                  {volist name="vo.child" id="son"}
                        {notempty  name="son.child"}
                            <li class="{$son.class}">
                              <a href="#"><i class="{$son.icon}"></i> {$son.name}
                                <span class="pull-right-container">
                                  <i class="fa fa-angle-left pull-right"></i>
                                </span>
                              </a>
                              <ul class="treeview-menu">
                                {volist name="son.child" id="gson"}
                                <li class="{$gson.class}"><a href="{$gson.url}"><i class="{$gson.icon}"></i> {$gson.name}</a></li>
                                {/volist}
                              </ul>
                            </li>
                        {else /}
                        <li class="{$son.class}"><a href="{$son.url}"><i class="{$son.icon}"></i> {$son.name}</a></li>
                        {/notempty}
                  {/volist}
              
              </ul>
            </li>
            {else /}
            <li class="{$vo.class}"><a href="{$vo.url}"><i class="{$vo.icon}"></i> <span>{$vo.name}</span></a></li>
            {/notempty}
        {/cms:menu}
        <li class="header">LABELS</li>
        <li><a href="http://www.kancloud.cn/kite/cms/203664"><i class="fa fa-circle-o text-red"></i> <span>手册</span></a></li>
      </ul>
    </section>
    <!-- /.sidebar -->
  </aside>